Improvement in middlings-purifiers



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l. E. GARDNER. v Mddlings-Puriers.

N0.]50,3l6. Patented Apri|28,1874.

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WITNESSES INVENTOB ATTUBNEYS.

UNITED STATES PATENT EEIoEo JOSEPH E. GARDNER, OF MOUNT JACKSON,VIRGINIA.

IMPROVEMENT IN MIDLINGS-PURIFlERS.

Specification forming part of Letters Patent No. 150,3l, dated April Q8,1874; application filed n March 23, 1874.

To all vwhom fit may concern:

Be it known that I, JOSEPH E. GARDNER, of Mount Jackson, in the countyof Shenandoah and State of Virginia, have invented a new and ImprovedMiddlings-Purier5 and I do hereby declare that the following is a full,clear, and exact description ofthe same, reference being had to theaccompanying drawing forming a part of this speciiication, in which-Figure` l is a side elevation, Fig. 2, a longitudinal vertical section;Fig. 3, a transverse vertical section, Fig. 4, a horizontal section.

rlheinvention relates to methods andmeans of purifying middlin gs, ashereinafter fully described, and subsequently pointed out in the claim.

A represents the base of the middlings-puri- Iier, having the aperturesa, which connect,

by double spouts B, with subjacent receptacles for the purifiedmiddlings, and with the superposed chambers C C, Fig. AL, for receivingsuction-fans that discharge the impurities. I) is a chamber, in whichrevolve the conveyers, that are separated by a floor provided withslides d, and carry the classified middlings to the point of dischargeinto their respective receptacles. E is a bolt consisting of alongitudinal inclined reel that is covered by a cloth, F, whichpreferably becomes coarser as it approaches the lowest part of theincline, where the middlings are discharged from the inside of bolt uponthe sloping` boards G G, leading to the conveyer-ehamber. 4 H is asuction-fan that discharges through the aperture h. I J

represent friction-disks, the latter of which revolves over the other,has a feed-opening in the center, and is inelosed by acentrally-apertured case, K, having spout k leading therefrom anddischarging into the bolt.

The operation is as follows: rlhe iniddlings are fed to the rubbers I J,which iiatten them and detach flour and particles therefrom.

These all pass into the inclined revolving bolt,

whose upper and finer part allows the speclrs and dust to pass throughand be carried by the blast of fan H through aperture 7L. The middlingsare next passed from the bolt, classified, and carried by the conveyersto their respective chambers through double spouts B. During theirpassage through these spouts the remaining dust or line detachedparticles are arrested, withdrawn, and discharged by the fans in cases OC.

Having thus described all that is necessary to an understanding of myinvention, what I claim as new, and desire to protect by Letters Patent,is-

In a middlingspurier, the combination of the rubbers I J, revolving boltE F, suctionfan H, hopper D, spouts B, and suction-fans' O O, whenconstructed and arranged to operate substantially in the manner and forthe purpose specified.

l i JosErE E. GARDNER. Witnesses:

L. TRIPLETT,

G. W. CALOEAN.

